One Japanese actually commented on the two girls' similar looks and asked, but Akiman doesn't seem like he's going to answer, unfortunately. IMO, I think it's pretty obvious the early influence, specially since this was apparently done around 1989 (before Final Fight), so Strider was still relatively recent. I wish he'd had included the text though, but ah well...

Yep. Akiman states it was from back when Street Fighter II began development, and writes in parenthesis something akin to "(pre-Final Fight)", so this was drawn around 1989 and is probably the very first design Chun-Li got ever.

Indeed, the one for Judgement Girl Toli. Her name's Japanese pronuntiation (Tonpuu) is compared to Toli (tonrii), Chun-li (Chunrii) and (jokingly) and Don't Pull (Donpuru, the puzzle game in Three Wonders).

Here's a recent video interview with Akira Yasuda, and this specific piece of art is briefly seen. Unfortunately he doesn't confirm anything related to Tong Pooh, but atleast there's an explanation about why they went from pants/sandals to tights/shoes for Chun's design.